+4 Hello can someone help me to solve this.
I do not even know how to start: D
Giving is a quadratic function f (x) and g (x). Determine the slope at the point x = 4!
f (x) = 2x² + 4x + 2
g (x) = 0.25 (x-2) 2 - 4
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f (x) = 2x² + 4x + 2
1.
Derivation => f `(x) = 4x + 4
Gradient at the point x = 4
=> f` (4) = 4 * 4 + 4
=> f` (4) = 20
g (x) = 0.25 (x-2) 2 - 4
What you say about?
+36916 Are you doing derivatives yet?
Derivative will tell you the slope of the curve at the given point
First one derivative = 4x + 4 put x = 4 in there to get slope =20
Second one
.25 (x^2-4x+4) -4
.25x^2 -x -3 ----------------> derivative : .5x -1 at x= 4 .5(4)-1 = 1 = slope
